xgboost installation issue with anaconda

Question

I am using Anaconda. I first switched to Python2 (Version 2.7.11).

python -V
Python 2.7.11 :: Continuum Analytics, Inc.

I used the followin

Answer 1

I had a similar problem

>>> import xgboost
/usr/local/anaconda2/lib/python2.7/site-packages/sklearn/cross_validation.py:44: DeprecationWarning: This module was deprecated in version 0.18 in favor of the model_selection module into which all the refactored classes and functions are moved. Also note that the interface of the new CV iterators are different from that of this module. This module will be removed in 0.20.
  "This module will be removed in 0.20.", DeprecationWarning)
Traceback (most recent call last):
  File "", line 1, in 
  File "/usr/local/anaconda2/lib/python2.7/site-packages/xgboost/__init__.py", line 11, in 
    from .core import DMatrix, Booster
  File "/usr/local/anaconda2/lib/python2.7/site-packages/xgboost/core.py", line 112, in 
    _LIB = _load_lib()
  File "/usr/local/anaconda2/lib/python2.7/site-packages/xgboost/core.py", line 106, in _load_lib
    lib = ctypes.cdll.LoadLibrary(lib_path[0])
  File "/usr/local/anaconda2/lib/python2.7/ctypes/__init__.py", line 440, in LoadLibrary
    return self._dlltype(name)
  File "/usr/local/anaconda2/lib/python2.7/ctypes/__init__.py", line 362, in __init__
    self._handle = _dlopen(self._name, mode)
OSError: /usr/local/anaconda2/bin/../lib/libgomp.so.1: version `GOMP_4.0' not found (required by /usr/local/anaconda2/lib/python2.7/site-packages/xgboost/./lib/libxgboost.so)

In my case the problem is that i installed xgboost with a regular user. So i did

sudo su
pip uninstall xgboost
pip install xgboost
python
>>> import xgboost
/usr/local/anaconda2/lib/python2.7/site-packages/sklearn/cross_validation.py:44: DeprecationWarning: This module was deprecated in version 0.18 in favor of the model_selection module into which all the refactored classes and functions are moved. Also note that the interface of the new CV iterators are different from that of this module. This module will be removed in 0.20.
  "This module will be removed in 0.20.", DeprecationWarning)
>>> ~

Hope this can help!